ISC BIND Assertion Failure Vulnerability

medium Nessus Plugin ID 122506
New! Plugin Severity Now Using CVSS v3

The calculated severity for Plugins has been updated to use CVSS v3 by default. Plugins that do not have a CVSS v3 score will fall back to CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.


The remote name server is affected by an assertion failure vulnerability.


According to its self-reported version, the instance of ISC BIND 9 running on the remote name server is less than 9.11.5-P4 / 9.11.5-S5 / 9.12.3-P4 / 9.13.7. It is, therefore, affected by an assertion failure vulnerability.

- An assertion failure exists in the managed-keys component due to an error when, during key rollover, a trust anchor's keys are replaced with keys which use an unsupported algorithm. An unauthenticated, remote attacker to cause named to deliberately exit after encountering an assertion failure.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.


Upgrade to ISC BIND version 9.11.5-P4 / 9.12.3-P4 / 9.13.7 or later.

See Also

Plugin Details

Severity: Medium

ID: 122506

File Name: bind9_CVE-2018-5745.nasl

Version: 1.4

Type: remote

Family: DNS

Published: 3/1/2019

Updated: 11/4/2019

Dependencies: bind_version.nasl

Configuration: Enable paranoid mode

Risk Information

CVSS Score Source: CVE-2018-5745


Risk Factor: Low

Score: 3.6


Risk Factor: Low

Base Score: 3.5

Temporal Score: 2.6

Vector: AV:N/AC:M/Au:S/C:N/I:N/A:P

Temporal Vector: E:U/RL:OF/RC:C


Risk Factor: Medium

Base Score: 4.9

Temporal Score: 4.3

Vector: CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:isc:bind

Required KB Items: bind/version, Settings/ParanoidReport

Exploit Ease: No known exploits are available

Patch Publication Date: 2/21/2018

Vulnerability Publication Date: 2/21/2018

Reference Information

CVE: CVE-2018-5745

BID: 107142